Finding the Fourth Proportional to 77,042.64, 106,279.44 and 50,230.08
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Solution
The fourth proportional to 77,042.64, 106,279.44 and 50,230.08 is: 69,291.82
Step by Step Solution
- Step 1: Write the proportion equation
77,042.64 : 106,279.44 = 50,230.08 : x - Step 2: Convert to fraction form
77,042.64/106,279.44 = 50,230.08/x - Step 3: Cross multiply
77,042.64x = 106,279.44 × 50,230.08 - Step 4: Simplify right side
77,042.64x = 5,338,424,773.56 - Step 5: Solve for x
x = 5,338,424,773.56/77,042.64 - Step 6: Final answer
x = 69,291.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.